Perhaps you should try some spelling variations:
tranh cua » doanh cua, manh cua
dung cong » dung trong
cong dang » cong dong, cong dan, cong dung
hanh cham » thanh pham, hanh lam, hanh nam
doc hieu » toc thieu, hoc thieu
cua dung » cua dang, cua dong, qua dung
hanh ca » hanh cac, hanh cat, hanh cua

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: ((doc hieu) OR (hoc hien)) manh - canh tranh cua dung cong dang ((hanh ca) or (hanh cham))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((doc hieu) OR (hoc hien)) manh - canh tranh cua dung cong dang ((hanh ca) OR (hanh cham))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((doc hieu) OR (hoc hien)) manh - canh tranh cua dung cong dang ((hanh ca) or (hanh cham))*".